Sodium hydroxide
SIGALD/06203 - puriss., meets analytical specification of Ph. Eur., BP, NF, E524, 98-100.5%, pellets
Synonym: ‘Caustic soda’
CAS Number: 1310-73-2
Empirical Formula (Hill Notation): HNaO
Molecular Weight: 40.00
EC Number: 215-185-5
MDL Number: MFCD00003548
Linear Formula: NaOH
Product Type: Chemical
| anion traces | chloride (Cl-): ≤20 mg/kg |
| phosphate (PO43-): ≤10 mg/kg | |
| silicate (as SiO2): ≤100 mg/kg | |
| sulfate (SO42-): ≤30 mg/kg | |
| assay | 98-100.5% |
| cation traces | Al: ≤10 mg/kg |
| As: ≤2 mg/kg | |
| Ca: ≤10 mg/kg | |
| Fe: ≤10 mg/kg | |
| Hg: ≤1 mg/kg | |
| K: ≤1000 mg/kg | |
| Pb: ≤0.5 mg/kg | |
| density | 2.13 g/cm3 at 20 °C |
| form | pellets |
| grade | puriss. |
| impurities | ≤0.0005% total nitrogen (N) |
| ≤0.002% heavy metals (as Pb) | |
| ≤0.5% Na2CO3 | |
| InChI | 1S/Na.H2O/h;1H2/q+1;/p-1 |
| InChI key | HEMHJVSKTPXQMS-UHFFFAOYSA |
| mp | 318 °C (lit.) |
| quality | meets analytical specification of Ph. Eur., BP, NF, E524 |
| Quality Level | 200  |
| SMILES string | [OH-].[Na+] |
| solubility | water: soluble 1260 g/L at 20 °C |
| vapor density | >1 (vs air) |
| vapor pressure | <18 mmHg ( 20 °C) |
| 3 mmHg ( 37 °C) |
